<template>
  <div class="department-container">
    <div class="app-container">
      <el-card>
        <!-- 用一个行列布局 -->
        <el-row type="flex" justify="space-between" align="middle" style="height: 40px">
          <el-col :span="20">
            <svg-icon icon-class="news" /><span>江苏传智播客教育科技股份有限公司</span>
          </el-col>
          <el-col :span="4">
            <el-row type="flex" justify="end">
              <!-- 两个内容 -->
              <el-col>负责人</el-col>
              <!-- 下拉菜单 element -->
              <el-col>
                <el-dropdown>
                  <span>
                    操作<i class="el-icon-arrow-down" />
                  </span>
                  <el-dropdown-menu slot="dropdown">
                    <el-dropdown-item @click.native="hAdd('')">添加子部门</el-dropdown-item>
                  </el-dropdown-menu>
                </el-dropdown>
              </el-col>
            </el-row>
          </el-col>
        </el-row>

        <!-- 属性的组件el-tree搭建属性的结构的数据 -->
        <!-- el-tree
          default-expand-all 是否展开所有的子节点
        -->
        <el-tree
          default-expand-all
          :data="list"
        >
          <!-- 使用作用域插槽获取组件内部的数据
           el-tree提供的默认的作用域插槽 #default="{data}" 获取el-tree组件内部的数据
          -->
          <template #default="{data}">
            <el-row type="flex" justify="space-between" align="middle" style="height: 40px;width:100%">
              <el-col :span="20">
                <svg-icon icon-class="news" /><span>{{ data.name }}</span>
              </el-col>
              <el-col :span="4">
                <el-row type="flex" justify="end">
                  <!-- 两个内容 -->
                  <el-col>{{ data.manager }}</el-col>
                  <!-- 下拉菜单 element -->
                  <el-col>
                    <el-dropdown>
                      <span>
                        操作<i class="el-icon-arrow-down" />
                      </span>
                      <el-dropdown-menu slot="dropdown">
                        <el-dropdown-item @click.native="hAdd(data.id)">添加子部门</el-dropdown-item>
                        <el-dropdown-item @click.native="hEdit(data.id)">编辑部门</el-dropdown-item>
                        <el-dropdown-item
                          v-if="data.children.length===0"
                          @click.native="hDel(data.id)"
                        >删除部门</el-dropdown-item>
                      </el-dropdown-menu>
                    </el-dropdown>
                  </el-col>
                </el-row>
              </el-col>
            </el-row>
          </template>
        </el-tree>

      </el-card>

      <!-- 准备新增子部门或编辑部门的弹层 -->
      <el-dialog
        :close-on-click-modal="false"
        :close-on-press-escape="false"
        :title="isEdit ? '编辑部门' :'新增子部门' "
        :visible.sync="showDialog"
        width="50%"
      >
        <addOrEdit :id="curId" ref="deptRef" :is-edit="isEdit" :origin-list="originList" @success="hSuccess" @close="showDialog=false" />
      </el-dialog>

    </div>
  </div>
</template>
<script>
import { getDepartments, delDepartments } from '@/api/departments'
import { transDataToTreeData } from '@/utils'

import addOrEdit from './deptDialog.vue'

export default {
  components: {
    addOrEdit
  },
  data() {
    return {
      list: [], // 存储部门列表
      showDialog: false, // 控制弹层的显示和隐藏
      curId: '', // 当前部门的id，作为子部门的父级id
      isEdit: false, // false 新增  || true 编辑
      originList: [] // 保存传给子组件的部门列表
    }
  },
  created() {
    this.loadDepartments()
  },
  methods: {
    hDel(id) {
      this.$confirm('您确定要删除该部门吗，是否继续？', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(async() => {
        // 确认实现删除
        const res = await delDepartments(id)
        if (res.code === 10000) {
          this.$message.success(res.message)
          this.loadDepartments()
        }
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        })
      })
    },
    hEdit(id) {
      this.curId = id
      this.isEdit = true // 编辑状态
      // 解决数据不更新的方法2
      // 保证dom更新完成之后 在调用组件中的方法，重新获取数据，填充表单
      // this.$nextTick(() => {
      //   this.$refs.deptRef.loadDepartmentsDetail()
      // })
      this.showDialog = true
    },
    hAdd(id) {
      this.curId = id
      this.isEdit = false // 编辑状态
      this.showDialog = true
    },
    hSuccess() {
      // 重新渲染列表数据，关闭弹层
      this.loadDepartments()
      this.showDialog = false
    },
    async  loadDepartments() {
      try {
        const res = await getDepartments()
        console.log(res, 'getDepartments')
        if (res.code !== 10000) return this.$message.error(res.message)
        this.originList = res.data.depts.map(item => {
          const { id, code, name, pid } = item
          return { id, code, name, pid }
        })

        this.$message.success(res.message)
        res.data.depts.shift() // 删除第一条数据，公司的名称
        // res.data.depts 平铺数据---》 使用transDataToTreeData转化成树形的数据
        this.list = transDataToTreeData(res.data.depts)
      } catch (error) {
        this.$message.error('获取数据失败！')
      }
    }
  }
}
</script>
